(Amazon Photo)

Update, Dec. 12: Customers looking to thank their Amazon delivery drivers with a $5 tip have run out of time, as a promotion started by the company last week has already reached its limit. Amazon told Tech Radar that the ability to use Alexa to say “thanks” exceeded company expectations. “We’re glad to see customers interested in thanking their drivers and encourage them to continue doing so. Drivers will continue to be notified of the gratitude received,” Amazon confirmed in a statement to GeekWire.

Original story: Customers looking to tip their Amazon delivery driver can get a little help in doing so from Alexa.

Starting this week in the U.S., customers who say, “Alexa, thank my driver” will trigger a tip toward the last worker who delivered a package to that customer. The $5 comes at no cost to the customer, and Amazon said in a blog post that it will run the promotion for the first 1 million thank-you’s received.

The five drivers who receive the most customer thank-you’s will also be rewarded with $10,000 and an additional $10,000 to their charity of choice, Amazon said.

You’ll need an Alexa-enabled device such as Echo or Echo Show if you want Amazon to pick up the tab. Otherwise, you can open your front door and slap $5 directly into the hand of that delivery person yourself.

The timing of the promotion comes as Amazon is facing a lawsuit in Washington, D.C., where Attorney General Karl Racine’s office filed a consumer protection lawsuit against the e-commerce giant, alleging that the company stole tips from drivers and deceived consumers about a tipping model in its Amazon Flex service.

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